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| Specification | Description | Details |
|---|---|---|
| Type | Truss Head Self-Tapping Screw | Forms own thread in pre-drilled holes. |
| Head Style | Truss (Hollow) Head | Reduced weight, increased torque efficiency. |
| Drive Type | Phillips, Slotted, Hex Socket | Commonly Phillips for self-tapping. |
| Material | Carbon Steel, Stainless Steel | Affects strength and corrosion resistance. |
| Grade | 4.8, 8.8, 10.9, etc. | Indicates mechanical properties. |
| Diameter (d) | M2 to M12 | Nominal diameter of the screw thread. |
| Length (L) | 5mm to 200mm | Total length of threaded/unthreaded portions. |
| Thread Pitch (P) | Coarse, Fine, Extra-Fine | Affects the fastening grip. |
| Finish | Zinc Plated, Black Oxide, etc. | Corrosion protection and aesthetics. |





| Method | Destination | Timeframe | Packaging |
|---|---|---|---|
| Ocean shipping | North/South America | ~40 working days | Boxes, cartons or plastic bags. |
| Ocean shipping | Eastern Europe | 30-40 working days | As per customer needs. |
| Ocean shipping | Southeast Asia | 20-30 working days | Standard export packing. |
| Air transport | Global | 1-3 business days | Secure professional packaging. |

Our company specializes in producing all kinds of high-strength fasteners, with a monthly production capacity of 800 tons. We mainly provide construction fasteners which include high-quality bolts, nuts, screws, and non-standard fasteners in accordance with GB, DIN, ISO, ANSI/ASTM, SAE/IFI, AS, BS, UNI, and JIS standards.
Our products are applied to architectural steel structures, bridges, oil pipelines, machinery equipment, furniture, vessels, and railways. We operate every link from raw material processing to production in strict accordance with ISO9001 procedures to ensure product quality.





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